K. Tyagi, Yogesh, Shvetambri Tyagi, Hanumantharao G. Raj, and Rajinder K. Gupta. “In Vitro Antioxidant Activity Evaluation of 4-Methyl Coumarin Derivatives”. Asian Journal of Chemistry 22, no. 5 (March 30, 2010): 3622–3628. Accessed November 25, 2024. https://asianpubs.org/index.php/ajchem/article/view/11591.